<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <meta name="theme-color" content="#000000">
    <script src="https://cdn.bootcss.com/react/15.4.2/react.min.js"></script>
    <script src="https://cdn.bootcss.com/react/15.4.2/react-dom.min.js"></script>
    <script src="https://cdn.bootcss.com/babel-standalone/6.22.1/babel.min.js"></script>
    <link rel="manifest" href="%PUBLIC_URL%/manifest.json">
    <link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico">
    <title>React App</title>
    <script type="text/javascript">
        var flag = 1;

        function toggle() {
            if (flag == 1) {
                document.getElementById('root').style.display = "block";
                flag = 0;
            }
            else{
                document.getElementById('root').style.display = "none";
                flag=1;
            }


        }
    </script>

</head>
<body>
<div>
    <h1>欢迎来到调色面板！</h1>
</div>
<div id="app"></div>
<div style="margin-top: 100px" id="bbb"></div>
<div id="aaa"></div>
<div id="count"></div>
<div></div>
<div id="root"></div>
</body>
</html>
